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| author | Akira Hatanaka <ahatanaka@mips.com> | 2012-10-30 20:16:31 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@mips.com> | 2012-10-30 20:16:31 +0000 |
| commit | 2f34d754d00fbe2e4a98762d71d0fae5f4b0cf45 (patch) | |
| tree | 4363eef803f374eb502a65e87910b47744c5e8ec /test/CodeGen | |
| parent | dfa4cecb1e549d96f800f7ebc793a342d8df1244 (diff) | |
| download | external_llvm-2f34d754d00fbe2e4a98762d71d0fae5f4b0cf45.zip external_llvm-2f34d754d00fbe2e4a98762d71d0fae5f4b0cf45.tar.gz external_llvm-2f34d754d00fbe2e4a98762d71d0fae5f4b0cf45.tar.bz2 | |
[mips] Allow tail-call optimization for vararg functions and functions which
use the caller's stack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167048 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/Mips/tailcall.ll | 66 |
1 files changed, 65 insertions, 1 deletions
diff --git a/test/CodeGen/Mips/tailcall.ll b/test/CodeGen/Mips/tailcall.ll index e82b1e3..f1aca68 100644 --- a/test/CodeGen/Mips/tailcall.ll +++ b/test/CodeGen/Mips/tailcall.ll @@ -121,7 +121,7 @@ entry: ; STATIC32: jal ; STATIC32: .end caller8_1 ; N64: .ent caller8_1 -; N64: jalr +; N64-NOT: jalr ; N64: .end caller8_1 %call = tail call i32 (i32, ...)* @callee8(i32 2, i32 1) nounwind @@ -156,3 +156,67 @@ entry: ret i32 %call } +declare i32 @callee10(i32, i32, i32, i32, i32, i32, i32, i32, i32) + +define i32 @caller10(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7, i32 %a8) nounwind { +entry: +; PIC32: .ent caller10 +; PIC32-NOT: jalr +; STATIC32: .ent caller10 +; STATIC32-NOT: jal +; N64: .ent caller10 +; N64-NOT: jalr + + %call = tail call i32 @callee10(i32 %a8, i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7) nounwind + ret i32 %call +} + +declare i32 @callee11(%struct.S* byval) + +define i32 @caller11() nounwind noinline { +entry: +; PIC32: .ent caller11 +; PIC32: jalr +; STATIC32: .ent caller11 +; STATIC32: jal +; N64: .ent caller11 +; N64: jalr + + %call = tail call i32 @callee11(%struct.S* byval @gs1) nounwind + ret i32 %call +} + +declare i32 @callee12() + +declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind + +define i32 @caller12(%struct.S* nocapture byval %a0) nounwind { +entry: +; PIC32: .ent caller12 +; PIC32: jalr +; STATIC32: .ent caller12 +; STATIC32: jal +; N64: .ent caller12 +; N64: jalr + + %0 = bitcast %struct.S* %a0 to i8* + tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast (%struct.S* @gs1 to i8*), i8* %0, i32 8, i32 4, i1 false) + %call = tail call i32 @callee12() nounwind + ret i32 %call +} + +declare i32 @callee13(i32, ...) + +define i32 @caller13() nounwind { +entry: +; PIC32: .ent caller13 +; PIC32-NOT: jalr +; STATIC32: .ent caller13 +; STATIC32-NOT: jal +; N64: .ent caller13 +; N64-NOT: jalr + + %call = tail call i32 (i32, ...)* @callee13(i32 1, i32 2) nounwind + ret i32 %call +} + |